Question

Name the microbe that is used as biocontrol agent for controlling pest butterfly caterpillars:

• A. Streptococcus spp.
• B. Trichoderma spp.
• C. Bacillus thuringiensis
• D. Saccharomyces cerevisiae

Hint:

Bt = Biocontrol bacteria that kills insect larvae by damaging their gut lining.

Answer 1

The Correct Option is C

Bacillus thuringiensis (Bt) produces insecticidal crystal proteins toxic to larval stages of insects like butterfly caterpillars. It is used as a biocontrol agent in both spray and transgenic crop forms to naturally manage pest populations.